Ask the entrepreneurs of the Millennial generation. Their ideas reflect Gen Y values such as sustainability, nutrition, and charitable giving.

Their dedication is unwavering. Mary Lemmer skipped her high school prom to go to the Northeast and research Italian water ice. Seth Priebatsch debuted his first online company—he admits it was a complete failure—at 12, and kept conceiving ideas until one stuck. Deepti Sharma kissed law school goodbye when an all-night study session inspired an ordering website for food trucks.

They frequently play dress-up. As Bradley Newberger says, “Somebody once told me, if you ever want to be an entrepreneur, you have to be able to wear a lot of hats, and I think I have a closet full of about a thousand hats.”

Age is no barrier. Investors love the high energy of young entrepreneurs. And when people don’t take them seriously, as 25-year-old Sharma says, “you take that as a way to put it back in their face and say, ‘Just because I don’t have 20 years of experience in the field doesn’t mean I can’t make it.’”

FoodtoEat overhauls online ordering. The website features 350 restaurants in New York and 40 food trucks—the first service of its kind to align with street vendors. Patrons can jump the line when they arrive to pick up orders, and, unlike competitors like Grubhub and Seamless, which charge restaurants up to 15 percent of the total order, FoodtoEat charges a flat 10 cents.

“Restaurants are a very high-risk business,” Sharma says. “If a restaurant doesn’t survive within its first year, they usually just shut down. And we’ve had that happen with two or three of our restaurants. Our pricing model is helping them to be able to sustain their business.”

In the summer of 2008, FoodtoEat was a far-flung possibility. Sharma had just graduated from Stony Brook University in New York and was preparing to take a job at a consulting firm in Washington, D.C., while studying for the LSAT. But papers she’d written on restaurant operations swirled in her head, and, living in Long Island, she was inundated with food trucks everywhere she walked.

“I kept thinking, what can I do, what kind of combination of a business can I run?” she says.

In late 2010, she hired a firm in Delhi, India, to design FoodtoEat. While technicians worked out the digital design, Sharma set out to get food trucks on board.

“It was a battle,” she says. “They were like, ‘No, I don’t want to work with you because I don’t trust you. Are you going to take my money from me?’ But slowly we were able to prove ourselves to them.”

FoodtoEat beta-launched in June 2011, and Sharma is now eyeing expansion into Philadelphia, Washington, D.C., and the West Coast.

As for her abandoned law degree? “I should probably do something part-time,” she says. “Maybe a JD/MBA.”

Tired of the corporate world of sports marketing, McGuire left to pursue his lifelong dream of starting his own business in June 2011.

McGuire and business partner, Frank Sciuto, opened their Mooyah franchise in the small town of Burleson, Texas, to avoid the over-saturated “better burger market” of Fort Worth.

Originally, McGuire had no plan of opening a franchise.

“I didn’t even have any intention of entering the foodservice industry,” McGuire says. “However, now I can’t imagine what it would have been like during those first months to not be able to pick up the phone and call [Mooyah corporate] after a rough day.”

McGuire has succeeded by being persistent.He apprenticed at a local Mooyah store for free to learn the ins and outs of the company. He then was unrelenting when getting funding for his franchise.

“We had to meet with nine banks before we could convince one to work with us,” he says.

With the business up and running, he is still bound by the strict guidelines of a start-up. Using diligent social media and word-of-mouth marketing, he saves money on advertising while working toward his lofty goal of $19,500 in transactions per week.